bot/bot.go

@@ -129,7 +129,7 @@ func (b *Bot) textMessageHandler(bot *telego.Bot, update telego.Update) {
 		slog.Info("/any-message", "type", "private")
 		b.processMention(message)
 	default:
-		slog.Debug("/any-message", "info", "Message is not mention, reply or private chat. Skipping.")
+		slog.Debug("/any-message", "info", "MessageData is not mention, reply or private chat. Skipping.")
 	}
 }
 
@@ -144,7 +144,13 @@ func (b *Bot) processMention(message *telego.Message) {
 
 	requestContext := b.createLlmRequestContextFromMessage(message)
 
-	llmReply, err := b.llm.HandleChatMessage(message.Text, b.models.TextRequestModel, requestContext)
+	userMessageData := tgUserMessageToMessageData(message)
+
+	llmReply, err := b.llm.HandleChatMessage(
+		messageDataToLlmMessage(userMessageData),
+		b.models.TextRequestModel,
+		requestContext,
+	)
 	if err != nil {
 		slog.Error("Cannot get reply from LLM connector")
 

bot/message_history.go

@@ -7,25 +7,28 @@ import (
 
 const HistoryLength = 150
 
-type Message struct {
+type MessageData struct {
-	Name string
+	Name          string
-	Text string
+	Username      string
-	IsMe bool
+	Text          string
+	IsMe          bool
+	IsUserRequest bool
+	ReplyTo       *MessageData
 }
 
 type MessageRingBuffer struct {
-	messages []Message
+	messages []MessageData
 	capacity int
 }
 
 func NewMessageBuffer(capacity int) *MessageRingBuffer {
 	return &MessageRingBuffer{
-		messages: make([]Message, 0, capacity),
+		messages: make([]MessageData, 0, capacity),
 		capacity: capacity,
 	}
 }
 
-func (b *MessageRingBuffer) Push(element Message) {
+func (b *MessageRingBuffer) Push(element MessageData) {
 	if len(b.messages) >= b.capacity {
 		b.messages = b.messages[1:]
 	}
@@ -33,7 +36,7 @@ func (b *MessageRingBuffer) Push(element Message) {
 	b.messages = append(b.messages, element)
 }
 
-func (b *MessageRingBuffer) GetAll() []Message {
+func (b *MessageRingBuffer) GetAll() []MessageData {
 	return b.messages
 }
 
@@ -53,14 +56,12 @@ func (b *Bot) saveChatMessageToHistory(message *telego.Message) {
 		b.history[chatId] = NewMessageBuffer(HistoryLength)
 	}
 
-	b.history[chatId].Push(Message{
+	msgData := tgUserMessageToMessageData(message)
-		Name: message.From.FirstName,
+
-		Text: message.Text,
+	b.history[chatId].Push(msgData)
-		IsMe: false,
-	})
 }
 
-func (b *Bot) saveBotReplyToHistory(message *telego.Message, reply string) {
+func (b *Bot) saveBotReplyToHistory(message *telego.Message, text string) {
 	chatId := message.Chat.ID
 
 	slog.Info(
@@ -68,7 +69,7 @@ func (b *Bot) saveBotReplyToHistory(message *telego.Message, reply string) {
 		"chat", chatId,
 		"to_id", message.From.ID,
 		"to_name", message.From.FirstName,
-		"text", reply,
+		"text", text,
 	)
 
 	_, ok := b.history[chatId]
@@ -76,17 +77,48 @@ func (b *Bot) saveBotReplyToHistory(message *telego.Message, reply string) {
 		b.history[chatId] = NewMessageBuffer(HistoryLength)
 	}
 
-	b.history[chatId].Push(Message{
+	msgData := MessageData{
-		Name: b.profile.Username,
+		Name:     b.profile.Name,
-		Text: reply,
+		Username: b.profile.Username,
-		IsMe: true,
+		Text:     text,
-	})
+		IsMe:     true,
+	}
+
+	if message.ReplyToMessage != nil {
+		replyMessage := message.ReplyToMessage
+
+		msgData.ReplyTo = &MessageData{
+			Name:     replyMessage.From.FirstName,
+			Username: replyMessage.From.Username,
+			Text:     replyMessage.Text,
+			IsMe:     false,
+			ReplyTo:  nil,
+		}
+	}
+
+	b.history[chatId].Push(msgData)
 }
 
-func (b *Bot) getChatHistory(chatId int64) []Message {
+func tgUserMessageToMessageData(message *telego.Message) MessageData {
+	msgData := MessageData{
+		Name:     message.From.FirstName,
+		Username: message.From.Username,
+		Text:     message.Text,
+		IsMe:     false,
+	}
+
+	if message.ReplyToMessage != nil {
+		replyData := tgUserMessageToMessageData(message.ReplyToMessage)
+		msgData.ReplyTo = &replyData
+	}
+
+	return msgData
+}
+
+func (b *Bot) getChatHistory(chatId int64) []MessageData {
 	_, ok := b.history[chatId]
 	if !ok {
-		return make([]Message, 0)
+		return make([]MessageData, 0)
 	}
 
 	return b.history[chatId].GetAll()

bot/request_context.go

@@ -48,17 +48,14 @@ func (b *Bot) createLlmRequestContextFromMessage(message *telego.Message) llm.Re
 	return rc
 }
 
-func historyToLlmMessages(history []Message) []llm.ChatMessage {
+func historyToLlmMessages(history []MessageData) []llm.ChatMessage {
 	length := len(history)
 
 	if length > 0 {
 		result := make([]llm.ChatMessage, 0, length)
 
 		for _, msg := range history {
-			result = append(result, llm.ChatMessage{
+			result = append(result, messageDataToLlmMessage(msg))
-				Name: msg.Name,
-				Text: msg.Text,
-			})
 		}
 
 		return result
@@ -66,3 +63,20 @@ func historyToLlmMessages(history []Message) []llm.ChatMessage {
 
 	return make([]llm.ChatMessage, 0)
 }
+
+func messageDataToLlmMessage(data MessageData) llm.ChatMessage {
+	llmMessage := llm.ChatMessage{
+		Name:          data.Name,
+		Username:      data.Username,
+		Text:          data.Text,
+		IsMe:          data.IsMe,
+		IsUserRequest: data.IsUserRequest,
+	}
+
+	if data.ReplyTo != nil {
+		replyMessage := messageDataToLlmMessage(*data.ReplyTo)
+		llmMessage.ReplyTo = &replyMessage
+	}
+
+	return llmMessage
+}

llm/llm.go

@@ -6,7 +6,6 @@ import (
 	"github.com/sashabaranov/go-openai"
 	"log/slog"
 	"strconv"
-	"strings"
 )
 
 var (
@@ -29,7 +28,7 @@ func NewConnector(baseUrl string, token string) *LlmConnector {
 	}
 }
 
-func (l *LlmConnector) HandleChatMessage(text string, model string, requestContext RequestContext) (string, error) {
+func (l *LlmConnector) HandleChatMessage(userMessage ChatMessage, model string, requestContext RequestContext) (string, error) {
 	systemPrompt := "You're a bot in the Telegram chat.\n" +
 		"You're using a free model called \"" + model + "\".\n\n" +
 		requestContext.Prompt()
@@ -52,28 +51,11 @@ func (l *LlmConnector) HandleChatMessage(text string, model string, requestConte
 
 	if historyLength > 0 {
 		for _, msg := range requestContext.Chat.History {
-			var msgRole string
+			req.Messages = append(req.Messages, chatMessageToOpenAiChatCompletionMessage(msg))
-			var msgText string
-
-			if msg.IsMe {
-				msgRole = openai.ChatMessageRoleAssistant
-				msgText = msg.Text
-			} else {
-				msgRole = openai.ChatMessageRoleSystem
-				msgText = "User " + msg.Name + " said:\n" + msg.Text
-			}
-
-			req.Messages = append(req.Messages, openai.ChatCompletionMessage{
-				Role:    msgRole,
-				Content: msgText,
-			})
 		}
 	}
 
-	req.Messages = append(req.Messages, openai.ChatCompletionMessage{
+	req.Messages = append(req.Messages, chatMessageToOpenAiChatCompletionMessage(userMessage))
-		Role:    openai.ChatMessageRoleUser,
-		Content: text,
-	})
 
 	resp, err := l.client.CreateChatCompletion(context.Background(), req)
 	if err != nil {
@@ -164,7 +146,3 @@ func (l *LlmConnector) HasModel(id string) bool {
 
 	return false
 }
-
-func quoteMessage(text string) string {
-	return "> " + strings.ReplaceAll(text, "\n", "\n> ")
-}

llm/request_context.go

@@ -1,5 +1,10 @@
 package llm
 
+import (
+	"github.com/sashabaranov/go-openai"
+	"strings"
+)
+
 type RequestContext struct {
 	Empty bool
 	User  UserContext
@@ -21,9 +26,12 @@ type ChatContext struct {
 }
 
 type ChatMessage struct {
-	Name string
+	Name          string
-	Text string
+	Username      string
-	IsMe bool
+	Text          string
+	IsMe          bool
+	IsUserRequest bool
+	ReplyTo       *ChatMessage
 }
 
 func (c RequestContext) Prompt() string {
@@ -62,3 +70,54 @@ func (c RequestContext) Prompt() string {
 
 	return prompt
 }
+
+func chatMessageToOpenAiChatCompletionMessage(message ChatMessage) openai.ChatCompletionMessage {
+	var msgRole string
+	var msgText string
+
+	switch {
+	case message.IsMe:
+		msgRole = openai.ChatMessageRoleAssistant
+	case message.IsUserRequest:
+		msgRole = openai.ChatMessageRoleUser
+	default:
+		msgRole = openai.ChatMessageRoleSystem
+	}
+
+	if message.IsMe {
+		msgText = message.Text
+	} else {
+		msgText = chatMessageToText(message)
+	}
+
+	return openai.ChatCompletionMessage{
+		Role:    msgRole,
+		Content: msgText,
+	}
+}
+
+func chatMessageToText(message ChatMessage) string {
+	var msgText string
+
+	if message.ReplyTo == nil {
+		msgText += "In reply to:"
+		msgText += quoteText(presentUserMessageAsText(*message.ReplyTo)) + "\n\n"
+	}
+	msgText += presentUserMessageAsText(message)
+
+	return msgText
+}
+
+func presentUserMessageAsText(message ChatMessage) string {
+	result := message.Name
+	if message.Username != "" {
+		result += " (@" + message.Username + ")"
+	}
+	result += " wrote:\n" + message.Text
+
+	return result
+}
+
+func quoteText(text string) string {
+	return "> " + strings.ReplaceAll(text, "\n", "\n> ")
+}